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Finding the Fourth Proportional to 114,240.45, 157,868.70 and 85,896.93

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Solution

The fourth proportional to 114,240.45, 157,868.70 and 85,896.93 is: 118,700.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,240.45 : 157,868.70 = 85,896.93 : x
  2. Step 2: Convert to fraction form
    114,240.45/157,868.70 = 85,896.93/x
  3. Step 3: Cross multiply
    114,240.45x = 157,868.70 × 85,896.93
  4. Step 4: Simplify right side
    114,240.45x = 13,560,436,673.09
  5. Step 5: Solve for x
    x = 13,560,436,673.09/114,240.45
  6. Step 6: Final answer
    x = 118,700.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.